Open AccessNovel study on mechanical properties of pack carburizing SCM 420 steel with energizer dog conch
Author(s) -
Ramli Ramli,
Chao Wu
Publication year - 2020
Publication title -
international journal of modern physics b/international journal of modern physics b
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.24
H-Index - 76
eISSN - 1793-6578
pISSN - 0217-9792
DOI - 10.1142/s021797922150065x
Subject(s) - carburizing , materials science , quenching (fluorescence) , carbon fibers , shell (structure) , conch , indentation hardness , metallurgy , composite material , microstructure , composite number , biology , paleontology , physics , quantum mechanics , fluorescence
Dog conch shell powder (DCSP) and coconut shell powder (CSP) are used as the calcium carbonate source (energizer) and carbon source, respectively, in the pack carburizing of SCM 420 low carbon steel. The surface hardness of the carburized specimens is investigated for various CSP:DCSP ratios and carburizing temperatures. It is found that a significant improvement in the hardness level is obtained for a DCSP concentration of 40% and a carburizing temperature of 950[Formula: see text]C. It is additionally shown that while DCSP can be used as an energizer in the carburizing process, it cannot be used as an activated carbon source. Finally, it is shown that the surface hardness of the carburized specimens can be significantly improved through a further quenching operation in water. Overall, the results presented in this study confirm the potential for utilizing natural resources such as DCSP and CSP for the pack carburizing of low-to-medium carbon steels.